Simone deals with an emotionally fragile woman, named Joyce Novak, whom is a witness for a double-murder when she keeps changing her story, for she is really only interested in flirting with him. Meanwhile, Sipowicz participates in the investigation where a family-run business, that he used to work in, is held up and the owner's wife is killed. After Donna leaves town for a long vacation (and to get away from the annoying Medavoy), her temporary replacement, John Irvin, is a flamboyantly gay man whom Simone used to know from his old precinct. But Irvin makes the whole the station, including the bigoted Sipowitz, uncomfortable. Also, Martinez enters in a police department boxing tournament.

Simone and Sipowicz search for a killer following a shooting spree, which left several people dead and where a rookie cop's missed shot also killed a bystander. Meanwhile, Fancy's younger brother, Reginald, a policeman in the 8th precinct, has racial troubles with his commanding officer and Fancy intercedes on his behalf and his own boss, Captain Bass, covers for him. Sipowicz sees a doctor and discovers he has an enlarged prostate and Sylvia mistakenly thinks their lack of sexual activity over the past few weeks was because of the rape incident from her past that she told him about.

Fancy works with Martinez to help him get ready for the inter-precinct boxing tournament. Meanwhile, Simone is attracted to the new undercover cop, Diane Russell, who is working with him to catch a wanted arsonist in a sting in which Lt. Fancy's informant, Vinny Greco, returns to offer more advice and annoyance to everyone. Elsewhere, a woman that Sipowicz gets to testify in a case is murdered by the men she was going to testify against, and Sipowicz tries to prevent the murdered woman's husband from going after the gang members responsible.

Simone and Sipowicz search for a killer of a bookie in which Mike Roberts returns to offer his help. Meanwhile, Donna returns from her long vacation trip to resume her position at the station and her temp, John Irvin, gives everyone farewell greeting cards when he is moved to the anti-crime lab upstairs. But Donna continues to treat Medavoy with resentment which leads to him thinking that she might be finished with him. Simone's obsessive witness, Joyce Novak, goes too far when Simone rejects her advances after he tells her that she will not testify in the upcoming trial. This leads to Joyce attempting to murder Diane Russell when she correctly assumes that she and Simone are romantically involved. Sipowicz and Sylvia meet with the priest to help with their wedding and later she hears a story about what has contributed to Sipowicz's loss of faith.

A witness to a crime smells alcohol on Russell's breath and uses it against her, and Sipowicz smells the same. Simone then confronts Russell about her drinking, but she tells him to mind his own business. John Irwin comes to Fancy for help when he and his gay lover are beaten up by gay-bashing officers in another precinct. Meanwhile, a terminally ill infant helps the detectives locate a serial rapist. Medavoy meets with his ex-wife who tells him that they should get back together for their kids and when Donna finds out, she tells him that their relationship is over.

Pre-wedding jitters put Sipowicz in a rare form of panic whereas Sylvia remains perfectly calm. While investigating a murder in Chinatown, Russell's drinking problem makes her miss getting a gun off a suspect and she finally admits to Simone about her alcoholism. Meanwhile, Fancy's brother, Reginald, is still having problems with his racist sergeant and his belligerent attitude has resulted in him being investigated by Internal Affairs. So Fancy, Simone, and the squad work together to help clear Reginald of any misconduct. Martinez finally goes out on a date with Lesniak and asks her to be his date for the wedding. At the ceremony, Simone is Sipowicz's best man, Sylvia's father escorts her down the aisle and even Andy Jr. makes it just in time for the ceremony. Medavoy brings his ex-wife to the wedding while a lonely and jealous Donna painfully watches from afar.

Martinez is shot in the back during a scuffle and the doctor's report is possible that he may be paralyzed for life. But Martinez's assailant, a government witness in a relocation program, will probably go free and Simone contacts reporter Benita Alden, his former girlfriend, to help put pressure on the D.A. to prosecute their protected witness. Meanwhile, Russell, on the road to recovery from her alcoholism, wants Sipowicz to let Simone know she's doing okay but she is on the brink of falling off the wagon. Donna expresses to Simone that she has feelings for him, and Sylvia tells Sipowicz that she may be pregnant.

Fancy is less than enthused when Ronnie Drucker, a detective under surveillance by Internal Affairs, is assigned to the squad and Simone is asked to keep an eye on him. Both Drucker and Simone work on a case where an elderly man has been accused of exposing himself to a young boy. Sipowicz, Martinez, and Russell investigate the murder of a pimp in a laundromat which is witnessed by a young homeless woman who turns out to be Holly, the teenage runaway who helped the detectives out on a previous case (from 'The Bank Dick' episode). Meanwhile, John Irvin asks Sipowicz if he should approach Lesniak to congratulate her on "coming out." But she won't listen to his gay pride talk as does everyone else.

Simone and the men from Internal Affairs share the suspect after Simone gets some information from his incarcerated friend, Ray, about a case that Mike Roberts once worked on. Meanwhile, Fancy and Sipowicz both work on the case of a self-confessed gunman in a neighborhood shooting, once they get the story they help the shooter out. Medavoy investigates the assault case of an actor who was injured in a staged fight that went awry.

A detective from another precinct, Martina Escobar, joins Simone and Sipowicz with their investigation of a rapist/murderer who is throwing small children from the tops of buildings. Meanwhile, Martinez and Russell investigate an alleged case of date rape, but the women of the squad and Sylvia have a major disagreement with Martinez's decisions regarding the suspect. Elsewhere, Sipowicz shows his son the ropes of being a cop.

Sipowicz meets with a priest to talk about his troubles and finally sees the light. Afterwards, he, Simone, and Russell work together to investigate a robbery where an auto mechanic got shot to death. Following the apprehension of a wounded suspect, the detectives also arrest the suspect's younger brother who is unwilling to make a statement against his brother out of blind loyalty. Meanwhile, Medavoy works on finding a new place to live while he, Martinez and Lesniak work on finding the suspect of a drug-related double murder. John Irvin passes out farewell notices to the employees when he announces that he is moving back to the 1st Precinct uptown. Simone and Russell plan a trip to the beach. Medavoy meets Anne McGuire, a new detective, while working on his case. Elsewhere, Lucy is disruptive at work and Fancy tries to find a way to transfer her out of the building. Baby Theo gets baptized which seems to bring Sipowitz and Sylvia back together.

Richardson confronts Sipowicz and Simone about their impending questioning of his wife over the murder of the nurse, but with the exception that Richardson is a real bad person, Sipowicz and Simone reach nothing. In a cross-over from the series "Upstairs", former temp and private detective John Irvin stops by the station to tell the detectives about the new graphics art business he started. But with the exception of the receptionist Dolores, no one is around, including Medavoy who leaves in a hurry for upstate New York where Abby now lives to be by her side when she goes into labor. Meanwhile, Kirkendall and Russell look into the theft of a graduate film student's camera, where only the student seems more interested in dispensing his own justice. Also, Sylvia finally learns about Sipowicz's medical condition from his doctor and finally persuades him to go for further tests and possible surgery.

The detectives investigate the torture-murder of a hotel magnate's son. Russell and Kirkendall suspect that an attempted rape victim is hiding something. Simone's health begins to deteriorate.

Sipowicz helps his ex-wife deal with a drunk-driving violation. Simone's body rapidly succumbs to infection in the wake of his heart transplant.

Sorenson and Sipowicz investigate the beating death of an elderly shop owner. Russell and Kirkendall encounter Dolores while investigating a homicide at a strip club.

Kirkendall's son witnesses the murder of a convenience store clerk. Medavoy and Martinez investigate the death of a homeless man.

John Irvin fears the worst when Dolores disappears. The detectives search for a body when a mentally ill man confesses to raping and murdering his girlfriend's daughter. Two brothers run their own investigation when their sibling is murdered.

A shooter fires upon Fancy during a stakeout. Sipowicz fears that Dornan's demotion may be linked to the reopening of the Suarez case.

Sorenson and Sipowicz investigate the murder of a nine-year-old girl whose body was discovered inside a locked basement. Medavoy and Martinez assist an elderly man who believes that his young girlfriend was pressured into embezzling money from him.

Sorenson and Sipowicz investigate when a fellow officer shoots a drug dealer; Russell and Kirkendall intercede on Gotelli's behalf when a disgruntled man repeatedly vandalizes his mobster neighbor's car.

Medavoy has an option for a holiday in the Hamptons. Danny's girlfriend announces she is late. A suspect is wired for sound to catch his boss in a case of a body in a dumpster.

The team investigate a courier firm robbery where Mike Roberts works, which looks like an inside job. An old lady dies, her apartment is robbed, and her nasty sister makes an impression.

Mike Roberts is found dead. John reveals a connection between Roberts and Cullinan, who was with Dolores when she died. Mike left behind a memoir detailing some of his work. Jill goes undercover as a drug-addicted hooker.

Dornan causes problems at an AA meeting and Andy asks the Lieutenant to talk to him. Dolores' father accuses the squad of withholding information from him about his daughter's murder. Jill splits from Cohen.

ADA Costas prepares for the trial against Cullinan, and chooses Sorenson to testify over her husband. A man is shot dead in his apartment, and his wife's story about Latinos looking for drugs doesn't add up.

Tensions mount as the Cullinan trial approaches. Mike Shannon brings a problem to Sorenson. Danny kisses Diane. There's a shooting at the courthouse.

Andy and Theo struggle to live without Sylvia, and the squad worries about them. Cullinan is confronted with new information about Mike's death. John is released from hospital.

Danny and Andy catch an assault that looks like it was done by the boys in blue. Jill considers dating her ex-husband.

Jill's son has his first communion, where Andy and Danny spot a surveillance van across the street from the church. A baby is found dead in a dumpster.

Andy is finding Theo a challenge. A man is found dead in a hotel bath-tub, minus a part of his anatomy and some personal effects. A mother brings her son into the house because she thinks he's been stealing.

The squad attends a homicide with seven naked bodies. Jill's ex is arrested.

James passes his sergeant's exam. Jill's ex-husband could be causing problems for Jill.

It's James' last day with the squad before he moves on as a sergeant. Jill's ex is in the wind and causing more problems for Jill.

Medavoy gets a new partner. A cop is shot and killed. Diane seeks counsel from Andy about whether to tell Jill what she knows about her ex.

A woman is run over by a bus, she was already dead when she was tossed from a van. Two Russian boys go missing after their father says he left them with his sister.

A young boy is suspected of killing his mother's boyfriend; Fancy realizes that Lt. Abner is severely depressed. Sipowicz has a date with a niece of a friend as a favor; Katie becomes upset at this news.

Andy and Danny reopen an unsolved murder when the body of a small child is found buried within a wall; Medavoy and Jones deal with the owner of a dog who has a bullet in his nose they need as evidence in their case.

Fancy tries to rebuild his relationship with Abner; Andy and Danny investigate the murder of a club owner; Jones takes out his frustration on a man who is suspected of raping and beating a woman.

John Irvin, the department's PAA, helps Andy and Danny with a possible love triangle homicide. Jill and Diane help a mentally challenged woman find the gang who raped her.

Medavoy and Jones look for a woman reported missing by her "distraught" husband; Andy and Danny deal with a snotty, eccentric art owner whose collection has been stolen.

Andy and Danny investigate the robbery of an elderly couple; Medavoy and Jones deal with a wealthy woman with a grudge against her former maid; Danny's informant, J.B., seems headed for disaster.

Danny has an emotional crisis; John Irvin helps in a case involving stolen antique clothing; Jill deals with a young woman with small children who steals because of her unemployed, abusive husband.

Jones uses his charm to help Andy and Danny solve the murder of an elderly couple; Medavoy gets involved with an old friend who is having trouble with the Chinese mafia.

A dismembered body is found in a barrel; the trail leads Andy and Danny to a mobster who denies knowledge; they later learn he's connected to another murder, his wife who disappeared years earlier.

A young woman tries to convince Jill and Diane that her twin sister has become a victim of foul play. Andy and Danny investigate an immigrant's missing, wealthy and unpopular wife.

The detectives accept the help of a pair of British police officers to catch a rapist-murderer who has emigrated from England to NY. Meanwhile, Jones becomes close with a reporter he met during a previous case.

Diane once again finds herself embroiled with Harry Denby who has information about Jill's ex-husband. The squad investigates a home repair scam.

Andy goes into a tailspin when a doctor's visit reveals that Theo may have cancer. Diane and Jill's relationship suffers when info about Jill's ex-husband surfaces. Andy and Danny ponder the impact on Jill's career.

IAB is closing in on Jill. Jill explains the leverage Don has over her. Andy stays by Theo's side as he undergoes tests to determine if he has cancer. Changes are made in the department as fallout over Jill's ex-husband.

The detectives investigate a multiple homicide at a fast food restaurant; an addict gives his 5 & a half year-old daughter to a drug dealer as collateral on an overdue loan; Internal Affairs reopens the Kirkendall case.

Danny wakes up in Diane's bed. Andy and Katie get Theo's test results. A former colleague of Bobby's reaches out to Diane from prison. The team investigate a series of cab-driver shootings.

A female officer is shot following a stationery store robbery and later dies in hospital. Danny tries to keep Diane safe. A new ADA arrives. Katie decides to move back home.

Fancy is being sent on a training course ahead of the squad getting computers. A woman is attacked by a court jester in a hotel room, then a body is found in another room - are they connected? Diane questions her involvement with Danny.

Diane turns to a friend at the Survivor's Network for help. A body is pulled from the water. Two Chinese men are brought in handcuffed together. The new computers arrive.

A schoolgirl is found dead. Andy asks Eddie's niece on a date. John babysits Theo for the first time.

A homeless guy Danny was trying to protect turns up dead. The DOA's father is concerned about the trust fund his sister will now inherit.

Fancy bawls out Diane and Danny about being in a relationship. A man traveling on the subway is killed. Denby is implicated in the courier scam.

Danny could be in big trouble for roughing up a suspect. Detective Connie McDowell joins the team for the day.

Danny is restored to full duty. Off. Szymanski's cousin is knocked down in the street and killed. Capt. Bass's wife is injured during a robbery at her store. Greg plays matchmaker.

Andy witnesses a hold-up in the street and shoots at the get-away car. Det. McDowell is assigned to fill in at the squad again.

A man loses his penis. Fancy makes Captain and the incoming Lieutenant is a ball-breaker. Andy is having second thoughts about Cynthia. A mob hit-man sings like a canary and implicates a celebrated Customs officer.

A man caught carrying a cash register takes Andy and Danny to a body. Fancy is packing up to leave. His replacement alienates the squad before he's even left.

Rodriguez mediates when Sipowicz and Sorenson clash with detectives from another squad anxious to solve a multiple murder case; Medavoy and Jones try their hand at making extra cash by cleaning up murder scenes.

Sipowicz and Sorenson investigate a case involving an off-duty police officer who was shot in the company of a prostitute; Medavoy and Jones aid a hapless bodega owner by concocting a story to keep him out of jail.

Jones and Medavoy investigate the murder of a Chinese restaurant owner. An IRS lawyer claims to have been kidnapped and released, but Sipowicz and Sorenson doubt his story.

Sipowicz and Sorenson try to get one scared witness to identify a murder suspect, while Russell and McDowell guard another witness who's due to testify in a murder trial.

Sipowicz and Sorenson investigate the murder of an exotic dancer; Sipowicz and Medavoy act as elderly decoys to catch some street thieves attacking old people outside a local bank.

Sipowicz and Sorenson investigate the murder of a drug dealer, while Sorenson continues to see the stripper, Kristen, who draws him into a favor for the owners of the Tailfeathers club.

Sorenson is missing, and a stripper is found murdered in his apartment. Medavoy and Jones investigate a killing, but the suspect identified by an eyewitness has a seemingly unshakable alibi.

While investigating the murders of four teenage girls, the 15th squad discovers the shocking truth about the disappearance of detective Danny Sorenson.

Sipowicz is hailed a hero after killing the man responsible for Sorenson's murder. While Lieutenant Rodriguez teams up with another precinct to investigate the robbery of his mother, the squad investigates the murder of two men affiliated with NYU.

The squad investigates two homicides: the immolation of a would-be musician and the stabbing of a socialite. The newest detective to the squad, John Clark, Jr., attempts to both learn a new job and fit into the squad despite interference from his father.

The squad is joined by Eddie Gibson who's been transferred from nightwatch. McDowell and Gibson investigate the murder of a woman with MS, while the other detectives investigate the killing of a Rikers corrections officer.

When Clark's badge is stolen, the squad scrambles to find the thief before Clark must report the loss, which could ruin his career. McDowell and Gibson investigate a murder involving a young pregnant girl.

The squad investigates the theft of a baby from a hospital, and the arson of an Arab-owned business.

The squad investigates the murder of two drug dealers, and the discovery of a body mistakenly listed as a victim of the World Trade Center attack. McDowell arrests the daughter she gave up for adoption.

Sipowicz and Clark investigate the murder of a hispanic worker, while Medavoy and Jones search for a puppy-knapper who stole valuable champion bulldog pups. McDowell gets a new partner--Rita Ortiz.

Sipowicz and Clark are assigned to work with John Clark, Sr. on a murder investigation. Two good samaritans run afoul of the law when the burglar they caught dies from a head wound.

Sipowicz, Clark, Medavoy and Jones investigate a double homicide at a Latino restaurant. McDowell and Ortiz contend with a possibly mentally unstable woman who's posing as a cop.

The detectives investigate two separate murders of a college student and a Latina woman. Sipowicz goes after Mrs. Hornby's business manager. Haywood finally makes a decision about her pregnancy.

Sipowicz, Clark, Medavoy and Jones investigate the murder of an unassuming teenager. McDowell and Ortiz search for the person responsible for firing a stray bullet that killed a three-year-old girl.

The detectives investigate the separate murders of two supposedly upstanding citizens: an ex-convict turned community activist and a doctor who donated time to helping drug addicts and prostitutes.

The detectives work to solve two murders: the shooting of a rising rap star and the shooting of stripper found nailed to a table. McDowell and Sipowicz try to define their relationship.

The detectives investigate the bombing of an abortion clinic that killed a guard. The squad gets a new lead on an old murder case. Ortiz's husband, Don, is murdered by his mistress' husband.

The squad investigates the murder of a young Chinese girl along with an alleged rape case. Irvin learns his father is dying. Clark tries to find a foster home for James Kilik.

The squad investigates two homicides: a gay man who hit his head after being punched out and another man shot on the street. Rodriguez is set-up by iab to take a bribe from an old friend.

The day's cases include an armored car robbery that left one guard dead, and the homicide of a woman whose body was found in a garbage truck; Sipowicz intervenes in the iab's case against Rodriguez.

The detectives investigate two crimes: the murder of a back-alley cosmetic surgeon and a violent rape; Clark finally takes Laughlin on in the boxing ring.

Sipowicz is taken hostage in an interrogation room by a suspect in the murder of a pot dealer and two of her friends; a suburban mom found with drugs in her purse appears to be covering for her son.

An unreliable witness and an overzealous detective hinder a murder investigation; a con artist scam leads the squad to a sex-slavery operation; McDowell agrees to join Sipowicz and Theo at a theme park.

Andy and Connie return from their week's holiday with Theo. A boy goes missing, and the squad is lead to a pedophile in the area. John meets with a lawyer about his father's estate.

McDowell and Ortiz investigate the death of a woman found in her apartment, where an ex-con neighbor is suspect. The investigation into Scott's murder points towards his friend. Andy thinks about the future. Rita meets John's father.

The temperature is rising. Sipowicz receives a death threat. A prostitute is murdered, causing IA to look at Clark. A huge drugs and cash hoard is found. An elderly woman is found tied up and beaten.

A bomb threat is received at the courthouse. John Clark is placed on restricted duties pending charges for murder of the prostitute. John Irvin buys a new car only to be carjacked on the first drive.

Andy and John attend a shooting where a man is shot in the groin. Connie's sister turns up, pregnant and beaten by her husband.

A little girl disappears at the park, after her father leaves her - or so he thinks - in the care of a friend's nanny for a moment. Connie's brother-in-law is arrested.

A boy on a bicycle is murdered. Connie's sister posts bail for her husband.

Maya's partner in anti-crime is killed. A little girl is snatched off the street. Connie becomes foster-mother to her niece.

Connie struggles to settle with the baby. A woman is found dead in a vacant lot. Another is found dead in the laundry room of her building. The Lieutenant dresses up for a lunch.

When NYPD Auxiliary Police Officer Heather Peterson is murdered, the detectives find her diary that details the sexual habits of the police officers at the 15th precinct. These findings cause the detectives to suspect the officers of the 15th precinct had something to do with her death, and the investigation of the cops cause tension between the officers and the detectives.

IAB start interviewing the officers who were in the diary, and Sipowicz and Clark are blamed as rats. A social worker appears to have taken her own life. A former cop wants his ashes buried at the precinct.

Andy and Theo move out. Tony thinks about calling it a day with his ex-wife. Sipowicz and Clark Jr look into the threats made to Clark Sr. A distressed, schizophrenic young man keeps saying "she can't breathe".

Connie and Rita find young children home alone, living in squalor. Tony's ex-wife is found dead. A carjacker is killed, and cocaine is found in the car.

Clark is placed under arrest after police find heroin in his car; detectives search for clues when a woman is beaten to death with a cordless drill; a murder victim's obsession with clean living may have led to his demise.

In hopes of freeing Clark from jail, Sipowicz searches for drug dealers who might have a connection to Laughlin; McDowell and Ortiz investigate a series of rapes in a park involving a perpetrator who forced his victims' boyfriends to watch.

The detectives investigate the murder of a homosexual man who gave room and board to Latino parolees in exchange for sex; McDowell and Ortiz search for clues when a community activist is stabbed to death.

A transvestite prostitute's murder leads the detectives to two prime suspects: a pimp, and a john who claims the pimp and the prostitute set him up in an effort to steal a watch.

Sipowicz and Clark investigate when Julian Pisano is wounded in a shooting incident; McDowell and Ortiz assist a woman who doggedly pursues justice when she's conned out of $100; Clark grows concerned when his father stops returning his phone calls.

Jones accidentally shoots a 13-year-old boy while pursuing a murder suspect; McDowell and Ortiz search for answers when a man whom police escorted from the scene of a domestic dispute is found dead.

The detectives investigate the murder of a homosexual financier whose death might be tied to a marine; Medavoy and Jones search for answers when a strangler attacks a Russian mail order bride; Haywood feels threatened when a murderer's conviction is overturned.

As Andy and Connie prepare to finalize the adoption of baby Michelle, Frank Colahan's mom and dad show up. Connie sweetly and sincerely tells them they want the grandparents to be part of Michelle's life to the fullest extent possible.

The murder of a man who frequented a betting parlor leads Sipowicz to an old friend; Jones searches for the man who attacked Haywood; the detectives research the Colahans' background.

A meek and mousy young woman is found beaten to death on the floor of her apartment. Her brother-in-law is very upset but not about her death--he was paying her money to use her apartment for an extramarital affair.

The detectives hunt for a man suspected of killing minorities to avenge injuries his brother suffered during the first Gulf War; Sipowicz and McDowell plan to marry.

The detectives investigate the shooting death of a man whose brother is a registered sex offender; and when Captain Fraker's trial gets underway, Sipowicz worries that his own testimony may have harmed the prosecution's case.

Sipowicz and Clark investigate the death of a transvestite whom a friend insists was having a relationship with a married man; a surgeon's hand is badly cut during a robbery; and Rodriguez testifies in the Fraker trial.

The detectives search for clues when a group of perpetrators torture a man for no apparent reason; a woman reports her husband as missing, but Sipowicz and Clark suspect she's not being completely forthcoming; and Fraker testifies in court.

The detectives investigate the strangulation death of a former porn star; a thirteen-year-old boy holds the key in implicating his father in his mother's murder; and the jury reaches a verdict in the Captain Fraker trial.

The detectives investigate a strangulation murder that may be tied to one of Diane Russell's cases; Russell consults a doctor when she discovers a lump in her breast; Medavoy and Jones investigate an arson linked to two boys.

Sipowicz, Russell, and Clark attempt to connect the murder of a young woman to two other killings; Medavoy and Jones investigate the shooting death of a mother whose children feared her.

A woman survives the serial killer's attack, and her account prompts the detectives to focus on Carlin, his partner, and a bodyguard; Medavoy and Jones investigate when an off-duty officer kills a man; and McDowell comforts Russell during a biopsy.

When another woman is murdered by the serial killer, the detectives arrest a suspect... and discover the killer's identity; and expecting a baby, Sipowicz and McDowell decide to get married.

Sipowicz and Clark search for two burglars who terrorized a retired cop and his wife; Medavoy and Jones assist an author who wrote a book on how to avoid paying income taxes; and Jones deals with Michael's father.

A man armed with a bomb walks into the station house and handcuffs himself to McDowell; unless the detectives release a Russian mobster from jail in one hour, the bomb will detonate.

When a Jewish jewelry-store owner is murdered, the detectives focus their investigation on two suspects: a Caucasian man who converted to Islam, and a rap star whose expensive jewelry turned out to be fake.

Sipowicz and Clark search for an African-American driver who fled the scene of a hit-and-run accident after unwittingly running over an Italian mobster's young daughter.

Sipowicz and Clark investigate the shooting death of a jogger who'd been having an affair with a police officer; and Medavoy and Jones search for answers when the body of a comedy club owner is found in the trunk of a stolen car.

A new detective, Stan Hatcher, joins the squad; the detectives investigate a shooting death that Hatcher believes is linked to a dispute between gang members; and a man insists that his young daughter has been kidnapped.

A kidnapping victim's startling statement clues Andy and John in on a serial sadist keeping women locked in a dungeon somewhere in New York. Meanwhile, a routine robbery investigation takes a saucy turn for Medavoy after he makes an unlikely connection with the 60-year-old victim.

Sipowicz searches for the truth when Hatcher is shot by a man who mistook him for a burglar; and a former pharmacist dies in a flophouse when someone fires a bullet into his room.

Andy's off-duty and slightly underhanded work to prove that Hatcher killed his own wife lands him a transfer out of the 15th precinct and into the Bellevue Morgue engineered by Detective Hatcher. Meanwhile, the squad is up to their whips and chains after a dominatrix is found murdered.

Haywood reopens an 18-year-old case that has Andy reliving a major mistake in his career. Meanwhile, Sipowicz and Clark investigate the death of a man whose brother was pursued by a bounty hunter. Elsewhere, Ortiz gets a new partner, Detective Kelly Ronson, who ends up lending an unusual hand during the hunt for the child an ex-con had to give up before going to prison.

A man's gunshot-induced amnesia causes Jones and Medavoy to concoct an unconventional way to nail his assailant. Meanwhile, a man Sipowicz put away twenty years ago for raping and murdering a 12-year-old girl goes free after DNA testing exonerates him, and Ortiz and Ronson bust a gruesome underground network pre-teen prostitution ring.

Andy and John approach Mrs Clifton for help with her daughter's murder. Jennifer turns up out of the blue, apparently off her meds. A man is shot, apparently over a church and a video tape.

Teacher David Lewis comes into the squad-room to talk about Cindy Clifton and a support group that he ran that she was a part of. Sipowicz and Clark let him go but send off some of his left behind chewing gum to DNA for testing. Jones goes to court as its the day when Michael is to testify against his father. Ortiz and Ronson go to the scene where tourist Ned Applebaum has been mugged and lost his wife's $35,000 necklace. Ortiz and Ronson eventually find out that Ned met a lady friend on the Internet and he was going to meet her in Little Italy when he was mugged. He was going to loan her the necklace so that she could use it as collateral for a loan for her sick child. The detectives get the PO Box number where Applebaum had sent previous gifts to his lady friend. Ortiz and Ronson go to the apartment of the owner of the PO Box. He is a day trader/con artist who they discover took advantage of Ned Applebaum. They get the necklace back and Ned is forgiven by his wife. Later, Gibson tells Sipowicz and Clark that David Lewis was found DOA in his apartment. They go to the scene and try to determine whether the death was a suicide or not. Sipowicz tries to decide how to proceed with the investigation of Lewis's death; both he and Clark believe that Brockhurst might be involved. Clark gets a call about Dr. Jennifer Devlin and goes to the hospital. The doctor tells her she needs to remain restrained for now, but he is allowed to see her as long as he doesn't loosen her restraints. Sipowicz finds Brockhurst and tells him of his theory that he killed David Lewis. Brockhurst doesn't admit to anything, but tells Sipowicz he is going to be able to sleep tonight now that the case is closed.

Sipowicz investigates a murder involving the victim's current husband and ex-husband; a longtime informant gives Ronson information about an illegal gun shipment, but the suspect's father is being followed by the FBI; Jones gets into a fight with Craig after he's acquitted of murder charges; and Sipowicz is the proud father of a baby boy.

There's a new boss who comes from IAD with a mandate to clean up the squad. Sipowicz receives a dead rat in the mail. Clark is heading off the rails. A doctor is found dead, and linked to a man who had a sex change.

The detectives tie the death of a pregnant woman to an adoption scam; Medavoy and Jones interview a woman who claims a masked assailant stole her valuable ring; and someone poisons Sipowicz's beloved fish.

When a convicted rapist is found shot to death, his victims become suspects in the murder investigation; and Sipowicz searches for answers when a stranger targets Theo as he walks home from school.

The detectives investigate the death of a phone-sex operator and the kidnapping of a wealthy man's son; and Clark's tryst with a murder suspect is used to derail the prosecutor's case.

After being shot outside a bar, Sipowicz discovers the identity of the person who's been harassing him.

While investigating a random stabbing, Sipowicz becomes obsessed with his own mortality after he's nearly gunned down by a murder suspect; Medavoy takes a job as a bouncer.

The detectives protect a scared witness testifying in a felony murder trial; Michael's father wants to regain custody; Bale finds out about Medavoy's job at the bar.

A gunman tries to kill a witness after a mistrial is declared in the Simon Kerensky arson case; and Jones goes to extremes to stop Craig from adopting Michael.

Jones becomes a murder suspect after Michael's father is shot to death; and Ortiz and Murphy investigate a molestation case that might involve a priest; Medavoy gets his hearing in trial court.

A man who cared for his brain-damaged brother is found dead; Medavoy falls for a wealthy woman while investigating an apartment rental scam; Bale tries to nail a man who offered the detectives a bribe.

While investigating a murder, Sipowicz discovers a secret about Bale; and Ortiz and Murphy investigate a shooting tied to a talented up-and-coming basketball player.

A call-girl's death is linked to other murders involving women who'd gone through rehab; Ortiz and Murphy investigate the death of an artist who'd been carrying on an affair with a wealthy man married to two other women.

The detectives continue their search for a serial killer who targets alcoholics trying to get sober; and Clark and Jones investigate a homicide linked to a woman with whom Clark had a one-night stand.

Sipowicz and Clark investigate the stabbing death of a coffee-shop owner who was attracted to young girls; Ortiz tries to keep her cousin out of trouble; and Medavoy and Jones link a murder to a paralyzed police officer and his family.

The detectives search for a suspect who killed a businessman by blowing up his car; and Ortiz and Murphy investigate the beating death of a student.

The detectives investigate the smothering death of an elderly man married to a voluptuous woman in her 20s; and a state judge pressures Medavoy and Jones to find out who poisoned her mother.

Detective John Clark Jr., Andy Sipowicz (who just was promoted Sergeant) and a military investigator examine the murder of military recruiter Sergeant Lester Bakewell, whose affair with a female colleague caused her divorce from a retired veteran Colonel; however, the prime suspect is student Paul Corbelli, whose brother was killed in service in Iraq. A woman reports her homeless Basque uncle missing abnormally since four days; he's found dead and Detectives Baldwin Jones and Greg Medavoy investigate.

A squad member is shot while storming an apartment; Clark and Jones investigate the bludgeoning death of a woman whose wealthy husband was going to finance a friend's salon business.

Bale offers to recommend Sipowicz for the squad commander position; Ortiz and Murphy investigates the death of a Muslim woman; and detectives search for the man who shot Bale.

As he begins his new job as squad commander, Sipowicz disobeys orders and keeps a murder investigation open... even though a Japanese man with diplomatic immunity has confessed to the crime.

John Irvin fears the worst when Dolores disappears. The detectives search for a body when a mentally ill man confesses to raping and murdering his girlfriend's daughter. Two brothers run their own investigation when their sibling is murdered.

John Irvin, the department's PAA, helps Andy and Danny with a possible love triangle homicide. Jill and Diane help a mentally challenged woman find the gang who raped her.

A schoolgirl is found dead. Andy asks Eddie's niece on a date. John babysits Theo for the first time.

The squad investigates the murder of a young Chinese girl along with an alleged rape case. Irvin learns his father is dying. Clark tries to find a foster home for James Kilik.

The detectives investigate the murder of a homosexual financier whose death might be tied to a marine; Medavoy and Jones search for answers when a strangler attacks a Russian mail order bride; Haywood feels threatened when a murderer's conviction is overturned.

Sipowicz and Clark investigate the murder of a hispanic worker, while Medavoy and Jones search for a puppy-knapper who stole valuable champion bulldog pups. McDowell gets a new partner--Rita Ortiz.

IAB start interviewing the officers who were in the diary, and Sipowicz and Clark are blamed as rats. A social worker appears to have taken her own life. A former cop wants his ashes buried at the precinct.

A bomb threat is received at the courthouse. John Clark is placed on restricted duties pending charges for murder of the prostitute. John Irvin buys a new car only to be carjacked on the first drive.

Fancy is less than enthused when Ronnie Drucker, a detective under surveillance by Internal Affairs, is assigned to the squad and Simone is asked to keep an eye on him. Both Drucker and Simone work on a case where an elderly man has been accused of exposing himself to a young boy. Sipowicz, Martinez, and Russell investigate the murder of a pimp in a laundromat which is witnessed by a young homeless woman who turns out to be Holly, the teenage runaway who helped the detectives out on a previous case (from 'The Bank Dick' episode). Meanwhile, John Irvin asks Sipowicz if he should approach Lesniak to congratulate her on "coming out." But she won't listen to his gay pride talk as does everyone else.

Danny is restored to full duty. Off. Szymanski's cousin is knocked down in the street and killed. Capt. Bass's wife is injured during a robbery at her store. Greg plays matchmaker.